Training effects on the development and generalization of Piagetian logical operations and knowledge of number

Investigated the effects of 2 training sequences on the development of logical operations and number in 45 middle-class preschool children (mean age 4 yrs 6 mo). Ss were randomly assigned and trained for 8 wks in 1 of 3 conditions: logical foundations (classification and seriation), number skills (counting), and control. Each of the experimental treatments was based on either of 2 broad perspectives: the logical foundations model of Piagetian theorists or a skills integration model. Instruments measuring number abilities and logical operations were designed as pre- and posttest measures. Findings show that (a) both experimental groups significantly outperformed the control group on both tests, (b) the number skills group significantly outperformed the logical foundations group on the number test, and (c) there was no significant difference between the experimental groups on the logical operations test. (PsycINFO Database Record (c) 2006 APA, all rights reserved).